Function default parameter

I am creating a udh function that requires to know the current date.
Since GetDate() can't be used inside a UDF I thought
I would use a date parameter with a default value of GetDate()
i.e.:
Create function dbo.ufn_GetWeekAreaAvailability(
@.WeekId int,
@.AreaId char(1),
@.Now DateTime = GetDate()
) Returns
or
Create function dbo.ufn_GetWeekAreaAvailability(
@.WeekId int,
@.AreaId char(1),
@.Now DateTime = (Select GetDate())
) Returns
These do not even compile
However
Create function dbo.ufn_GetWeekAreaAvailability(
@.WeekId int,
@.AreaId char(1),
@.Now DateTime = GetDate
) Returns
Does but when I call it it
Select * from dbo.ufn_GetWeekAreaAvailability(1,'1',Default)
It tells me that string cannot be converted to a date
Server: Msg 241, Level 16, State 1, Procedure ufn_Test, Line 0
Syntax error converting datetime from character string.
Any Idea...
Thanks
--
FredHi Fred,
You can't use a function as the default value for a parameter, only
literals. You can use a view that just returns the value of GETDATE() for
example:
CREATE VIEW vw_getdate
AS
SELECT GETDATE() AS getdate
but the view will be accessed each time the function is executed, which
means that you can end up with having different values for each execution.
The safest is not to use a default value and just pass in the value for
GETDATE().
--
Jacco Schalkwijk
SQL Server MVP
"Fred" <Fred@.discussions.microsoft.com> wrote in message
news:7315A12D-37ED-4F5F-8855-2DFE1F2153E6@.microsoft.com...
>I am creating a udh function that requires to know the current date.
> Since GetDate() can't be used inside a UDF I thought
> I would use a date parameter with a default value of GetDate()
> i.e.:
> Create function dbo.ufn_GetWeekAreaAvailability(
> @.WeekId int,
> @.AreaId char(1),
> @.Now DateTime = GetDate()
> ) Returns
> or
> Create function dbo.ufn_GetWeekAreaAvailability(
> @.WeekId int,
> @.AreaId char(1),
> @.Now DateTime = (Select GetDate())
> ) Returns
> These do not even compile
> However
> Create function dbo.ufn_GetWeekAreaAvailability(
> @.WeekId int,
> @.AreaId char(1),
> @.Now DateTime = GetDate
> ) Returns
> Does but when I call it it
> Select * from dbo.ufn_GetWeekAreaAvailability(1,'1',Default)
> It tells me that string cannot be converted to a date
> Server: Msg 241, Level 16, State 1, Procedure ufn_Test, Line 0
> Syntax error converting datetime from character string.
> Any Idea...
>
> Thanks
>
>
> --
> Fred